PROJECT PRIME--APPLICATIONS OF LIFESTYLE EXERCISE

描述 这项拟议的研究是一项随机试验，旨在评估两种生活方式的体检 活动干预。生活方式的方法是基于 动机准备模型和社会认知理论，旨在 帮助久坐的成年人达到推荐的至少30分钟 每天中等强度的体力活动。之前的工作，由 调查人员发现，一种生活方式的体力活动干预 在“行为团体流程”的环境下交付，导致 体力活动和脂蛋白等临床变量的改善 侧写、血压和身体成分。 本申请提出了一个三组随机试验来开发和测试 进一步的生活方式干预，通过降低强度和成本 面对面的干预。最初的小组会议生活方式 (Prime G组)将与提供 通过邮件和电话提供咨询和指导(Prime C-通讯员)。 还将有标准护理控制(Prime SC)，参与者 获得为期6个月的YM/YWCA会员资格和一份一般健康通讯。 调查人员计划招募和随机分配总共243名男子和 女性要满足这三个条件。 拟议的项目Prime是一个为期24个月的研究，最初为期6个月 密集干预和18个月的维护和随访期。 主要的研究假设是，相应的生活方式 干预将同样有效地增加体力活动和 在最初健康的久坐不动的男性和女性中耐力健身的比例更高 密集的小组会议生活方式，并将在显著 成本更低。

DESCRIPTION The proposed study is a randomized trial to evaluate two lifestyle physical activity interventions. The lifestyle approach is based on the stages of motivational readiness model and social cognitive theory, and is designed to help sedentary adults achieve the recommended 30 minutes of at least moderate intensity physical activity each day. Previous work by the investigators has found that a lifestyle physical activity intervention delivered in a "behavioral group process" setting, resulted in increases in physical activity and improvements in clinical variables such as lipoprotein profile, blood pressure, and body composition. This application proposes a three group randomized trial to develop and test the lifestyle intervention further by decreasing the intensity and cost of face-to-face interventions. The original group meeting lifestyle approach (PRIME G - group) will be compared with an intervention that provides counseling and guidance by mail and telephone (PRIME C - Correspondent). There will also be a standard care control (PRIME SC) in which participants are given a 6-month YM/YWCA membership and a general wellness newsletter. The investigators plan to recruit and randomly assign a total of 243 men and women to the three conditions. The proposed project, PRIME, is a 24-month study, with initial 6-month intensive interventions and an 18-month maintenance and follow-up period. The primary research hypothesis is that the correspondent lifestyle intervention will be as effective in increasing physical activity and endurance fitness in initially healthy sedentary men and women as the more intensive group meeting lifestyle approach and will do so at significantly less cost.